I like to believe in the good of man, I would like to believe that everything on these guys site is legit. EG, that they are a PTY (LTD) if they are, they are being audited. If they had things like bots etc which stopped you from winning, I would think that that would be illegal on an auction site. I dont know that law too well, but if they were allowed to do it, then yeah, i agree its a bit like gambling, and the odds are stacked against you, if they do not have bots and everyone who is bidding are real people, then I think your odds are better.
Dont know anyone who has won, then again i dont know anyone who plays